Lubricant oil



Patented June 18, 1929.,

UNITED STATES OLE BOLI'SEN, OF LABVIK, NORWAY.

LUBBICAN '1 OIL.

Io Drawing. Applicati'oii filed June 17, 1928, Serial No. 116,619, and in Norway March 12, 1925.

This invention has for its object a lubricant which is particularly suitable for automobile engines and other combustion or explosion engines especially in suchsystems 1n 5 which the engine cylinder oil is also used for the lubrication of bearings and gears.

This lubricant substantially consists of mineral oil with an addition of fatty acid glycerides of marine origin.

As compared with known lubricants containing fatty acid glycerides as an addition the present lubricant is distinguished in that it contains an incompletely h drogenized. 'whale oil containing considera le propor-' tions of saturated as well as unsaturated fatty acid glycerides.

The whale oil product to be used as an addition to the mineral oil can be obtained by any of the known methods of hydrogenating oils by blowing with hydrogen in the presence of catalysts.

While the hydrogenation treatment is continued only to the point at which the product is of a pasty or semi-fluid character at ordinary temperature, the percentage of unsaturated fatty acid glycerides will be 'sufliciently high to comply with the requirements of the invention.

For example, 100 ki lo ams of whale oil Y and then dried in a vacuum at a temperature not exceeding 90 C. To this oil .is added about 2 kilograms of nickel-on-kieselguhr catalyst and containing about .5.kilograms of metallic nickel. The oil is then placed in a hydrogenation, apparatus, hydrogen injected and the temperature raised to about 160 (3. \Vhen about 3 cubic meters of 40 hydrogen have been absorbed b the charge the hydrogen is shut off, the c arge cooled and the catalyst separated out by means of a filter press. The resulting incompletely hydrogenated oil is then mixed with. from 2500-3000 kilograms of mineral oil to form the compounded lubricant. The'proportion of partiall hardened oil which has to be added to t e mineral oil will vary according to the conditions under 1. A lubricant comprising a mineral oil 5 i and a substantial proportion of an added in completely-hydrogenated whale oil.

2. A. lubricant comprising a mineral oil, and between 5-10% of an added incompletely-hydrogenated whale oil.

I In testimony whereof I have signed name to this specification.

OLE ROLFSEN. 

